(1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(O-ISOPROPOXYPHENYLMETHYLENE)RUTHENIUM

Synonym(s):(1,3-Bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(o-isopropoxyphenylmethylene)ruthenium;Dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](2-isopropoxyphenylmethylene)ruthenium(II);Grubbs Catalyst C627;Hoveyda-Grubbs Catalyst 2nd Generation;Hoveyda-Grubbs Catalyst M72 (C627)

CAS NO.：301224-40-8
Empirical Formula: C31H37Cl2N2ORu
Molecular Weight: 625.62
MDL number: MFCD03701614
EINECS: 608-446-3
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:12:33

(1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(O-ISOPROPOXYPHENYLMETHYLENE)RUTHENIUM Structural

What is (1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(O-ISOPROPOXYPHENYLMETHYLENE)RUTHENIUM?

Chemical properties

Bright green crystalline powder

The Uses of (1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(O-ISOPROPOXYPHENYLMETHYLENE)RUTHENIUM

It′s a phosphine free version of Grubbs 2^nd Generation Catalyst with comparable reactivity, but initiates more readily at lower temperatures. Efficient for metathesis of electron-deficient substrates including fluorinated olefins. Demonstrated in multiple large-scale pharmaceutical applications.
It can be used as a catalyst for olefin cross-metathesis with fluorinated olefins (CM), ring-closing metathesis (RCM), ring-opening metathesis (ROM), and a sequence of a metathesis reaction and subsequent dihydroxylation of the newly formed double bond.

Properties of (1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(O-ISOPROPOXYPHENYLMETHYLENE)RUTHENIUM

Melting point:	216-220 °C(lit.)
storage temp.	2-8°C
solubility	Chloroform (Slightly), Dichloromethane (Slightly), Methanol (Slightly)
form	Solid
color	Green to Very Dark Green
Stability:	Hygroscopic
CAS DataBase Reference	301224-40-8
EPA Substance Registry System	Ruthenium, [1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro[[2-(1-methylethoxy-.kappa.O)phenyl]methylene-.kappa.C]-, (SP-5-41)- (301224-40-8)

Safety information for (1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(O-ISOPROPOXYPHENYLMETHYLENE)RUTHENIUM

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05
GHS Hazard Statements	H227:Flammable liquids H314:Skin corrosion/irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P405:Store locked up. P403+P235:Store in a well-ventilated place. Keep cool.

Computed Descriptors for (1,3-BIS-(2,4,6-TRIMETHYLPHENYL)-2-IMIDAZOLIDINYLIDENE)DICHLORO(O-ISOPROPOXYPHENYLMETHYLENE)RUTHENIUM

InChIKey

ZRPFJAPZDXQHSM-UHFFFAOYSA-L

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